580 California St., Suite 400
San Francisco, CA, 94104
Key research themes
1. How do electrochemical measurement techniques enhance understanding and prediction of corrosion kinetics and mechanisms?
This theme addresses the application and advancement of electrochemical methods to elucidate the thermodynamics and kinetics of corrosion processes. Electrochemical techniques provide rapid, non-destructive, and mechanistic insights into metal dissolution, passivation, and corrosion rates, enabling better prediction, monitoring, and mitigation strategies in diverse environments.
Key finding: This work comprehensively presents electrochemical methods such as polarization, electrochemical impedance spectroscopy (EIS), and electrochemical noise analysis as critical tools for quantifying corrosion rates and... Read more
Key finding: The study describes the integration of electrochemical techniques, including corrosion potential (Ecorr), redox potential, EIS, ENA, and microelectrodes, to monitor microbiologically influenced corrosion (MIC). It emphasizes... Read more
Key finding: This paper introduces a computational electrochemical model capturing charge-conservation conditions, enabling accurate prediction of corrosion rates without externally applied potentials or currents. The model explicitly... Read more
Key finding: The research uses electrochemical impedance spectroscopy under coupled and uncoupled conditions to evaluate the synergistic inhibitory effect of molybdate combined with nitrite, silicate, and phosphate on galvanic corrosion... Read more
2. What are the roles and mechanisms of corrosion inhibitors in mitigating electrochemical corrosion in metallic systems?
This focus area consolidates investigations on various chemical and organic corrosion inhibitors, their electrochemical modes of action, and how they alter surface reactions to retard or block metal dissolution. Studies explore inhibitor performance in different solution chemistries and environmental conditions, mechanisms such as adsorption, film formation, and passivation, as well as implications for practical corrosion control.
Key finding: Electrochemical impedance spectroscopy and voltammetry reveal that organic corrosion inhibitors like decanoate ions block FeOOH dissolution and reduce ionic diffusion in rust pores on steel artefacts. The formation of iron... Read more
Key finding: This review highlights synthetic and green inhibitors, surface modifications, biofilm management, and nanoparticle-based strategies as corrosion mitigation approaches against MIC. It synthesizes mechanistic understanding,... Read more
Key finding: The review surveys organic and inorganic inhibitors' adsorption and chelate formation with metal surfaces as key to corrosion rate reduction. It further discusses laser surface treatment as a corrosion inhibitor augmenting... Read more
Key finding: Combination of molybdate anions with other oxyanions provides improved galvanic corrosion inhibition by forming complex oxide/hydroxide protective layers at anodic sites, disrupting galvanic coupling currents. This... Read more
Key finding: Electrochemical polarization and impedance tests reveal that organic inhibitor efficiency decreases in the presence of hydrocarbons. Adsorption-controlled inhibition mechanisms govern corrosion in NACE brine solutions, and... Read more
3. How do material-specific electrochemical properties and surface treatments influence corrosion behaviour in advanced alloys and additive manufactured materials?
This thematic cluster investigates how alloy composition, microstructural features, additive manufacturing-induced heterogeneity, anodization, and protective surface treatments affect corrosion responses. Electrochemical assessments elucidate correlations between processing, microstructure, and corrosion phenomena, guiding materials selection and engineering for improved corrosion resistance.
Key finding: This review identifies that WAAM-fabricated alloys exhibit spatially heterogeneous corrosion owing to microstructural gradients from thermal cycling. Electrochemical characterization reveals variability in passive film... Read more
Key finding: Electrochemical impedance spectroscopy and cyclic potentiodynamic polarization demonstrate that anodization in H3PO4 creates thicker, more protective oxide films on Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V alloys, improving... Read more
Key finding: Applying ECAP-induced severe plastic deformation to Cu-Sn alloys produces ultrafine grains and lattice distortions that enhance corrosion resistance by altering electrochemical response and suppressing localized attack. The... Read more
Key finding: Electrochemical impedance and polarization tests indicate a pronounced synergistic inhibition effect of CeCl3 and benzotriazole on AA2024 alloy, with greater efficacy in naturally aged samples. SEM/EDS analyses show... Read more